Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2009CAMRY HYBRIDREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLBRAKE CONTROL - HYBRIDELECTRONICALLY CONTROLLED BRAKE SYSTEMPROBLEM SYMPTOMS TABLE
2009 Toyota Camry Hybrid
Problem Symptoms Table
2009 Toyota Camry HybridSECTION Problem Symptoms Table
If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.
NOTE:
When replacing the skid control ECU, sensor, etc., make sure that the power switch is turned off, the stop light switch is off, and 2 minutes have elapsed since the driver's door was closed.
HINT:
- Inspect the fuse and relay before investigating the suspected areas shown in the table below.
- Inspect each malfunctioning circuit in numerical order for the corresponding symptom.
- Since the oil passage is blocked off by the master cut solenoid during Electronically Controlled Brake control, there is no kickback (vibration) to the brake pedal, creating a quiet operating sound even while the ABS is operating.
Electronically Controlled Brake System:
ELECTRONICALLY CONTROLLED BRAKE SYSTEM TROUBLESHOOTING CHART
| Symptom | Suspected Area | See Procedure |
|---|---|---|
| ABS, BA and/or EBD does not operate | 1. Use a chassis dynamometer, etc. to check the Electronically Controlled Brake operation. | - |
| 2. Check the DTC again and make sure that the normal system code is output. | DTC CHECK / CLEAR | |
| 3. IG power source circuit | DTC C1242/42 OPEN IN IG1 / IG2 POWER SOURCE CIRCUIT | |
| 4. Front speed sensor circuit | DTC C0200/31 FRONT SPEED SENSOR RH CIRCUIT; DTC C0205/32 FRONT SPEED SENSOR LH CIRCUIT; DTC C1271/71 LOW OUTPUT SIGNAL OF FRONT SPEED SENSOR RH (TEST MODE DTC); DTC C1272/72 LOW OUTPUT SIGNAL OF FRONT SPEED SENSOR LH (TEST MODE DTC) | |
| 5. Rear speed sensor circuit | DTC C0210/33 REAR SPEED SENSOR RH CIRCUIT; DTC C0215/34 REAR SPEED SENSOR LH CIRCUIT; DTC C1273/73 LOW OUTPUT SIGNAL OF REAR SPEED SENSOR RH (TEST MODE DTC); DTC C1274/74 LOW OUTPUT SIGNAL OF REAR SPEED SENSOR LH (TEST MODE DTC) | |
| 6. Check the brake actuator assembly with Techstream. (Check brake actuator assembly operation using the Active Test function.) If abnormal, check the hydraulic circuit for leakage. | ON-VEHICLE INSPECTION | |
| 7. If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (for TMC made). | REMOVAL | |
| 8. If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (for TMMK made). | REMOVAL | |
| ABS, BA and/or EBD does not operate efficiently | 1. Check the DTC again and make sure that the normal system code is output. | DTC CHECK / CLEAR |
| 2. Front speed sensor circuit | DTC C0200/31 FRONT SPEED SENSOR RH CIRCUIT; DTC C0205/32 FRONT SPEED SENSOR LH CIRCUIT; DTC C1271/71 LOW OUTPUT SIGNAL OF FRONT SPEED SENSOR RH (TEST MODE DTC); DTC C1272/72 LOW OUTPUT SIGNAL OF FRONT SPEED SENSOR LH (TEST MODE DTC) | |
| 3. Rear speed sensor circuit | DTC C0210/33 REAR SPEED SENSOR RH CIRCUIT; DTC C0215/34 REAR SPEED SENSOR LH CIRCUIT; DTC C1273/73 LOW OUTPUT SIGNAL OF REAR SPEED SENSOR RH (TEST MODE DTC); DTC C1274/74 LOW OUTPUT SIGNAL OF REAR SPEED SENSOR LH (TEST MODE DTC) | |
| 4. Check the brake actuator assembly with Techstream. (Check brake actuator assembly operation using the Active Test function.) If abnormal, check the hydraulic circuit for leakage. | ON-VEHICLE INSPECTION | |
| 5. If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (for TMC made). | REMOVAL | |
| 6. If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (for TMMK made). | REMOVAL | |
| ABS warning light abnormal (Remains on) | 1. ABS warning light circuit | ABS WARNING LIGHT REMAINS ON |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| ABS warning light abnormal (Does not come on) | 1. ABS warning light circuit | ABS WARNING LIGHT DOES NOT COME ON |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| BRAKE warning light abnormal (Remains on) | 1. Brake fluid level warning switch circuit | DTC C1202/68 MASTER RESERVOIR LEVEL MALFUNCTION |
| 2. BRAKE warning light circuit | BRAKE WARNING LIGHT REMAINS ON | |
| 3. Skid control ECU (for TMC made) | REMOVAL | |
| 4. Skid control ECU (for TMMK made) | REMOVAL | |
| BRAKE warning light abnormal (Does not come on) | 1. BRAKE warning light circuit | BRAKE WARNING LIGHT DOES NOT COME ON |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| VSC and/or TRAC does not operate | 1. Check that traction control has not operated by carrying out diagnosis. | - |
| 2. Check the DTC again and make sure that the normal system code is output. | DTC CHECK / CLEAR | |
| 3. IG power source circuit | DTC C1242/42 OPEN IN IG1 / IG2 POWER SOURCE CIRCUIT | |
| 4. Check the hydraulic circuit for leakage. | - | |
| 5. Front speed sensor circuit | DTC C0200/31 FRONT SPEED SENSOR RH CIRCUIT; DTC C0205/32 FRONT SPEED SENSOR LH CIRCUIT; DTC C1271/71 LOW OUTPUT SIGNAL OF FRONT SPEED SENSOR RH (TEST MODE DTC); DTC C1272/72 LOW OUTPUT SIGNAL OF FRONT SPEED SENSOR LH (TEST MODE DTC) | |
| 6. Rear speed sensor circuit | DTC C0210/33 REAR SPEED SENSOR RH CIRCUIT; DTC C0215/34 REAR SPEED SENSOR LH CIRCUIT; DTC C1273/73 LOW OUTPUT SIGNAL OF REAR SPEED SENSOR RH (TEST MODE DTC); DTC C1274/74 LOW OUTPUT SIGNAL OF REAR SPEED SENSOR LH (TEST MODE DTC) | |
| 7. Yaw rate and acceleration sensor circuit | DTC C0371/71 YAW RATE SENSOR (TEST MODE DTC) | |
| 8. Steering angle sensor circuit | DTC C1231/31 STEERING ANGLE SENSOR CIRCUIT MALFUNCTION | |
| 9. If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (for TMC made). | REMOVAL | |
| 10. If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the skid control ECU (for TMMK made). | REMOVAL | |
| Brake control warning light abnormal (Remains on) | 1. Brake control warning light circuit | BRAKE CONTROL WARNING LIGHT REMAINS ON |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| Brake control warning light abnormal (Does not come on) | 1. Brake control warning light circuit | BRAKE CONTROL WARNING LIGHT DOES NOT COME ON |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| VSC warning light (master caution indicator light and multi information display) abnormal (Remains on) | 1. VSC warning light circuit | VSC WARNING LIGHT REMAINS ON |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| VSC warning light (master caution indicator light multi information display) abnormal (Does not come on) | 1. VSC warning light circuit | VSC WARNING LIGHT DOES NOT COME ON |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| SLIP indicator light abnormal (Remains on) | 1. SLIP indicator light circuit | SLIP INDICATOR LIGHT REMAINS ON |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| SLIP indicator light abnormal (Does not come on) | 1. SLIP indicator light circuit | SLIP INDICATOR LIGHT DOES NOT COME ON |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| DTC check cannot be done | 1. Check the DTC again and make sure that the normal system code is output. | DTC CHECK / CLEAR |
| 2. TC and CG terminal circuit | TC AND CG TERMINAL CIRCUIT | |
| 3. If the symptoms still occur even after the above circuit in suspected areas has been inspected and proved to be normal, replace the skid control ECU (for TMC made). | REMOVAL | |
| 4. If the symptoms still occur even after the above circuit in suspected areas has been inspected and proved to be normal, replace the skid control ECU (for TMMK made). | REMOVAL | |
| Sensor check cannot be done | 1. TS and CG terminal circuit | TS AND CG TERMINAL CIRCUIT |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL | |
| Skid control buzzer abnormal | 1. Skid control buzzer circuit | SKID CONTROL BUZZER CIRCUIT |
| 2. Skid control ECU (for TMC made) | REMOVAL | |
| 3. Skid control ECU (for TMMK made) | REMOVAL |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.